package com.greensock.easing
{

	public class Circ
	{
		public static function easeIn(t:Number, b:Number, c:Number, d:Number):Number
		{
			return -c * (Math.sqrt(1 - (t/=d) * t) - 1) + b;
		}

		public static function easeOut(t:Number, b:Number, c:Number, d:Number):Number
		{
			return c * Math.sqrt(1 - (t=t / d - 1) * t) + b;
		}

		public static function easeInOut(t:Number, b:Number, c:Number, d:Number):Number
		{
			if ((t/=d * 0.5) < 1)
				return -c * 0.5 * (Math.sqrt(1 - t * t) - 1) + b;
			return c * 0.5 * (Math.sqrt(1 - (t-=2) * t) + 1) + b;
		}
	}
}


